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3 years ago

12

A 70 kg student is riding on a skateboard at 4m/s. A 60 kg student is also riding a

1 answer:

Fudgin [204]3 years ago

6 0

Answer is C, one student has more mass, therefore more inertia.

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Frequency, f, is how many cycles of an oscillation occur per second and is measured in cycles per second or hertz (Hz). The period of a wave, T, is the amount of time it takes a wave to vibrate one full cycle. These two terms are inversely proportional to each other: f = 1/T and T = 1/f.

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2 years ago

A 42.2 kg sled is pulled forward

zaharov [31]

The net force on the sledge is 31.64N.

Frictional force = µkR

= 0.269 x 42.2 x 9.81 = 111.36

net force = 143N - 111.36N

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refer brainly.com/question/24557767

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2 years ago

The elements are mostly likely to form more than one type of ion are the

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3 years ago

A heavy ball with a weight of 150 N is hung from the ceiling of a lecture hall on a 4.1-m-long rope. The ball is pulled to one s

AlladinOne [14]

Answer:

The tension in the rope is 262.88 N

Explanation:

Given:

Weight $W = 150$ N

Length of rope $r = 4.1$ m

Initial speed of ball $v = 5.5 \frac{m}{s}$

For finding the tension in the rope,

First find the mass of rod,

$mg = 150$ ( $g = 9.8 \frac{m}{s^{2} }$ )

$m = \frac{150}{9.8}$

$m = 15.3$ kg

Tension in the rope is,

$T = mg + \frac{mv^{2} }{r}$

$T = 150 + \frac{15.3 \times (5.5)^{2} }{4.1}$

$T = 262.88$ N

Therefore, the tension in the rope is 262.88 N

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3 years ago